CN103615003A - Swing spraying pile anchor rod construction method - Google Patents
Swing spraying pile anchor rod construction method Download PDFInfo
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- CN103615003A CN103615003A CN201310664206.XA CN201310664206A CN103615003A CN 103615003 A CN103615003 A CN 103615003A CN 201310664206 A CN201310664206 A CN 201310664206A CN 103615003 A CN103615003 A CN 103615003A
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Abstract
The invention relates to a swing spraying pile anchor rod construction method in the field of geotechnical engineering anchoring. The swing spraying pile anchor rod construction method includes the steps of firstly, determining an anchoring position; secondly, enabling a rod body to be connected with a drill rod, forward pushing the drill rod into soil mass along with the rod body, and enabling the rod body to be disengaged from the drill rod when the drill rod is drawn back; thirdly, inputting high-pressure liquid into the drill rod, spraying the high-pressure liquid into the soil mass through a high-pressure spraying nozzle arranged on a drill bit, pushing the drill rod into the soil mass while enabling the drill rod to repeatedly swing in the forward direction and the backward direction around the central axis of the drill rod, and completing swing spraying pile construction in an anchoring section position of an anchor rod; fourthly, enabling the drill rod to be separated from the rod body, taking out the drill rod, placing the rod body between a swing spraying pile and the soil mass, and entering an anchor rod maintenance period; fifthly, locking the rod body, and entering an anchor rod use period. No holes need to be formed in the anchor rod, the rod body such as a steel pipe, a steel rib and a steel strand can be arranged into an anchoring body while the swing spraying pile is constructed, the construction speed is high, the manufacturing cost is low, and the swing spraying pile anchor rod construction method can be widely applied to the field of engineering such as foundation pit supporting.
Description
Technical field
The present invention relates to the geotechnical anchor engineering field in field of civil engineering.
Background technology
Along with engineering construction developing rapidly of underground space development particularly, in the engineering constructions such as bracing of foundation pit, slope retaining, the demand of anchor pole is increased day by day, rotary churning pile anchor pole has obtained application more widely at present.But rotary churning pile anchor pole is when construction molding, due to the drilling rod rotation status in single direction always, when the body of rod is flexible structure, when adopted steel strand as the body of rod, the body of rod can be brought the soil body into by rotary churning pile drilling rod, and construction more for convenience.But when body of rod rigidity is larger, as adopt steel pipe as the body of rod, or during using callable anchor pole as the body of rod, because the body of rod causes being difficult in construction rotary churning pile, the body of rod being inserted in the soil body together with when construction is easy to mutually twist with drilling rod, in addition, because pile body cross section after rotary churning pile pile is circular, less with the contact surface area of the soil body, so the bearing capacity of foundation soil is not yet given full play to.
The content of invention
The object of the present invention is to provide a kind of pendulum spray stake anchor rod construction method, this pendulum spray stake anchor rod construction method can be realized the installation of the anchor pole of the various forms body of rod smoothly, do not need pore-forming, the anchor bolt construction of can once having constructed, speed is fast, and cost is low, and can provide very large anti-pulling capacity, significantly save geotechnical anchor engineering cost, easy construction, reliable in quality.
This pendulum spray stake anchor rod construction method comprises the following steps:
A) determine anchor pole position;
B) body of rod is connected with drilling rod, and makes the drilling rod portability body of rod be pushed forward into the soil body, and when drilling rod is regained, the body of rod can depart from drilling rod;
C) highly pressurised liquid is inputted to drilling rod, and spurt into the soil body by the high pressure nozzle being arranged on drill bit, when drilling rod is advanced to the soil body, drilling rod is swung repeatedly around the positive and negative both direction in drilling rod axis, in the anchoring section position of anchor pole, complete pendulum spray pile driving construction;
D) drilling rod is separated with the body of rod, take out drilling rod, the body of rod is placed in to pendulum spray stake and the soil body, enter anchor pole curing time;
E) the locking body of rod, enters the anchor pole operating period.
In above-mentioned pendulum spray stake anchor rod construction method, at above-mentioned steps c) in, within the angle that drilling rod swings repeatedly around the positive and negative both direction in drilling rod axis can be controlled in half circumference.
Pendulum spray stake anchor rod construction method of the present invention can be inserted the soil body with the body of rod of sectional dimension by different-stiffness together with pendulum spray stake drilling rod, can make the body of rod and anchoring body strictly to the heart, applied widely, easy construction, and cost is low.
The specific embodiment
As one embodiment of the present of invention, main purpose is to introduce pendulum spray stake anchor rod construction method.In the first step of pendulum spray stake anchor rod construction method of the present invention, first, according to designing requirement, determine the plane of anchor pole and vertically arrange, complete the first step of pendulum spray stake anchor rod construction method of the present invention, enter second step.In this step, available wire rope is fixed the body of rod, and wire rope is hung on pendulum spray stake drilling rod, because wire rope is flexible structure, in pendulum spray stake drill pipe wobbling drilling process, the body of rod can enter the soil body under the traction of wire rope, because the body of rod hangs on drilling rod by wire rope, therefore when rod boring, the body of rod is followed drilling rod and is entered the soil body, when drilling rod exits the soil body, drilling rod can depart from the body of rod, and the body of rod is stayed in the soil body.Certainly, also can be flexibly connected forming between the body of rod and drilling rod by other structures are set, as steel plate being set at lever front end, and steel plate is connected with the body of rod, in close drilling rod position, circular hole is set on steel plate, by the front end sleeve of drilling rod within circular hole, utilize the front fine and rear thick shape of drilling rod front end, by suitable Circularhole diameter is set, make within the thin portion of the front end section of drilling rod is enclosed within circular hole, in variable cross-section position, steel plate is blocked, thereby realize the body of rod and drilling rod when creeping into and creep into the soil body simultaneously, when drilling rod exits the soil body, the body of rod can be stayed in Rock And Soil.The second step that completes pendulum spray stake anchor rod construction method of the present invention, enters the 3rd step.In this step, utilize high-pressure pump that highly pressurised liquid is inputted to drilling rod, and spurt into the soil body by the high pressure nozzle being arranged on drill bit, the soil body is cut, and drilling rod is advanced to the soil body together with the body of rod, meanwhile, drilling rod is swung repeatedly around the positive and negative both direction in drilling rod axis, in the anchoring section position of anchor pole, complete pendulum spray pile driving construction.In this step, at free section, highly pressurised liquid can be the cement paste of water or low concentration, main purpose is by near the soil body cutting body of rod and drilling rod, make soft of soil, be easy to the insertion of drilling rod and the body of rod, in anchoring section position, highly pressurised liquid can be cement paste, after cutting soil, can form pendulum spray stake by solidifying of cement.This step, distinguishing with the maximum of rotary churning pile anchor bolt construction is that drilling rod is not that a direction is rotated around its axis, but swing around the axis forward and reverse direction of drilling rod, can effectively avoid the body of rod with drilling rod, to rotate in the soil body, therefore the body of rod can be the larger members of rigidity such as steel pipe, round steel, reinforcing bar.In this step, also can in the process of rod boring, with water under high pressure, creep into, in the process for the treatment of to exit at drilling rod, utilize cement paste to complete pendulum spray pile driving construction.In this step, when completing pendulum spray stake anchor construction, can make drilling rod is an acute angle around the maximum angle of its axis forward and reverse direction pendulum spray, thereby after completing, construction forms a fan-shaped pendulum spray piled anchor solid, also pendulum angle that can positive and negative both direction is set to semicircle or is slightly larger than semicircle, forms the pendulum spray piled anchor solid of a circular cross-section after construction completes.In this step work progress, can be by regulating pressure and the engineering time of water under high pressure mud to control the radius that pendulum sprays stake.The 3rd step that completes pendulum spray stake anchor rod construction method of the present invention, enters the 4th step.In this step, drilling rod is separated with the body of rod, take out section by section drilling rod, and the body of rod is placed in to pendulum spray stake and the soil body, as mentioned before, also can in exiting the process of the soil body, this step drilling rod complete the construction of pendulum spray stake, after drilling rod takes out, enter anchor pole curing time.The 4th step that completes pendulum spray stake anchor rod construction method of the present invention, enters the 5th step.In this step, by the body of rod of anchor pole with by stake or the collar tie beam etc. of anchoring, be firmly connected, just can utilize the anti-pulling capacity of anchor pole, enter the operational phase of anchor pole.Thereby complete pendulum spray stake anchor bolt construction of the present invention.
This patent includes but not limited to other construction methods of the alternative use of professional person in this area.
Claims (2)
1. pendulum sprays a stake anchor rod construction method, comprises the following steps:
A) determine anchor pole position;
B) body of rod is connected with drilling rod, and makes the drilling rod portability body of rod be pushed forward into the soil body, and when drilling rod is regained, the body of rod can depart from drilling rod;
C) highly pressurised liquid is inputted to drilling rod, and spurt into the soil body by the high pressure nozzle being arranged on drill bit, when drilling rod is advanced to the soil body, drilling rod is swung repeatedly around the positive and negative both direction in drilling rod axis, in the anchoring section position of anchor pole, complete pendulum spray pile driving construction;
D) drilling rod is separated with the body of rod, take out drilling rod, the body of rod is placed in to pendulum spray stake and the soil body, enter anchor pole curing time;
E) the locking body of rod, enters the anchor pole operating period.
2. pendulum spray stake anchor rod construction method according to claim 1, is characterized in that at above-mentioned steps c) in, within the angle that drilling rod swings repeatedly around the positive and negative both direction in drilling rod axis can be controlled in half circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664206.XA CN103615003A (en) | 2013-12-10 | 2013-12-10 | Swing spraying pile anchor rod construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664206.XA CN103615003A (en) | 2013-12-10 | 2013-12-10 | Swing spraying pile anchor rod construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103615003A true CN103615003A (en) | 2014-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664206.XA Pending CN103615003A (en) | 2013-12-10 | 2013-12-10 | Swing spraying pile anchor rod construction method |
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| CN (1) | CN103615003A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387871A (en) * | 2018-04-17 | 2019-10-29 | 浙江鼎业基础工程有限公司 | Wall-like modified body construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043133A (en) * | 1976-07-21 | 1977-08-23 | Yegge Lawrence R | Structure and method of constructing and test-loading pile anchored foundations |
| CN1657711A (en) * | 2005-03-21 | 2005-08-24 | 严平 | Rotary spray anchoring pile construction process |
| CN101413268A (en) * | 2008-10-17 | 2009-04-22 | 徐玉杰 | Large-angle swinging and spraying high-pressure injection grouting machinery and working method thereof |
| CN201485863U (en) * | 2009-09-04 | 2010-05-26 | 中国电力工程顾问集团东北电力设计院 | Digging rock bolt compound environment-protection basis |
| CN201826323U (en) * | 2010-08-11 | 2011-05-11 | 霍宏斌 | Pile-anchor rod foundation structure |
| CN102080377A (en) * | 2010-12-13 | 2011-06-01 | 张继红 | Composite anchor rod and guide construction method thereof |
| CN102518135A (en) * | 2011-12-29 | 2012-06-27 | 标力建设集团有限公司 | Foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles |
-
2013
- 2013-12-10 CN CN201310664206.XA patent/CN103615003A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4043133A (en) * | 1976-07-21 | 1977-08-23 | Yegge Lawrence R | Structure and method of constructing and test-loading pile anchored foundations |
| CN1657711A (en) * | 2005-03-21 | 2005-08-24 | 严平 | Rotary spray anchoring pile construction process |
| CN101413268A (en) * | 2008-10-17 | 2009-04-22 | 徐玉杰 | Large-angle swinging and spraying high-pressure injection grouting machinery and working method thereof |
| CN201485863U (en) * | 2009-09-04 | 2010-05-26 | 中国电力工程顾问集团东北电力设计院 | Digging rock bolt compound environment-protection basis |
| CN201826323U (en) * | 2010-08-11 | 2011-05-11 | 霍宏斌 | Pile-anchor rod foundation structure |
| CN102080377A (en) * | 2010-12-13 | 2011-06-01 | 张继红 | Composite anchor rod and guide construction method thereof |
| CN102518135A (en) * | 2011-12-29 | 2012-06-27 | 标力建设集团有限公司 | Foundation pit support construction method combining horizontal rotary jet-grouting soil bolting and bore concrete piles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387871A (en) * | 2018-04-17 | 2019-10-29 | 浙江鼎业基础工程有限公司 | Wall-like modified body construction method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140305 |